core/include/core.h

   1 #ifndef CORE_H
   2 #define CORE_H
   3
   4 #include <klibc/compiler.h>
   5 #include <com32.h>
   6 #include <syslinux/pmapi.h>
   7
   8 extern char core_xfer_buf[65536];
   9 extern char core_cache_buf[65536];
  10 extern char trackbuf[];
  11 extern char CurrentDirName[];
  12 extern char SubvolName[];
  13 extern char ConfigName[];
  14 extern char KernelName[];
  15 extern char cmd_line[];
  16 extern char ConfigFile[];
  17
  18 /* diskstart.inc isolinux.asm*/
  19 extern void getlinsec(void);
  20
  21 /* getc.inc */
  22 extern void core_open(void);
  23
  24 /* hello.c */
  25 extern void myputs(const char*);
  26
  27 /* idle.c */
  28 extern int (*idle_hook_func)(void);
  29 extern void __idle(void);
  30 extern void reset_idle(void);
  31
  32 /* mem/malloc.c, mem/free.c, mem/init.c */
  33 extern void *malloc(size_t);
  34 extern void *lmalloc(size_t);
  35 extern void *pmapi_lmalloc(size_t);
  36 extern void *zalloc(size_t);
  37 extern void free(void *);
  38 extern void mem_init(void);
  39
  40 void __cdecl core_intcall(uint8_t, const com32sys_t *, com32sys_t *);
  41 void __cdecl core_farcall(uint32_t, const com32sys_t *, com32sys_t *);
  42 int __cdecl core_cfarcall(uint32_t, const void *, uint32_t);
  43
  44 extern const com32sys_t zero_regs;
  45 void call16(void (*)(void), const com32sys_t *, com32sys_t *);
  46
  47 /*
  48  * __lowmem is in the low 1 MB; __bss16 in the low 64K
  49  */
  50 #define __lowmem __attribute__((nocommon,section(".lowmem")))
  51 #define __bss16  __attribute__((nocommon,section(".bss16")))
  52
  53 /*
  54  * Section for very large aligned objects, not zeroed on startup
  55  */
  56 #define __hugebss __attribute__((nocommon,section(".hugebss"),aligned(4096)))
  57
  58 /*
  59  * Death!  The macro trick is to avoid symbol conflict with
  60  * the real-mode symbol kaboom.
  61  */
  62 __noreturn _kaboom(void);
  63 #define kaboom() _kaboom()
  64
  65 /*
  66  * Basic timer function...
  67  */
  68 extern volatile uint32_t __jiffies, __ms_timer;
  69 static inline uint32_t jiffies(void)
  70 {
  71     return __jiffies;
  72 }
  73 static inline uint32_t ms_timer(void)
  74 {
  75     return __ms_timer;
  76 }
  77
  78 /*
  79  * Helper routine to return a specific set of flags
  80  */
  81 static inline void set_flags(com32sys_t *regs, uint32_t flags)
  82 {
  83     uint32_t eflags;
  84
  85     eflags = regs->eflags.l;
  86     eflags &= ~(EFLAGS_CF|EFLAGS_PF|EFLAGS_AF|EFLAGS_ZF|EFLAGS_SF|EFLAGS_OF);
  87     eflags |= flags;
  88     regs->eflags.l = eflags;
  89 }
  90
  91 #endif /* CORE_H */